Lantern



FIG. 1 is a perspective view of a lantern showing my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken line showing is for environmental purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a lantern, as shown and described. 